We listen to 16 as well, usually via cockpit handheld on the rationale that we wouldn't likely to be close enough to help if we can't hear it on the handheld. Occasionally we'll turn on the base if necessary, or if we hear something interesting developing.
We used to 'pick a channel' with our cruising friends to avoid the clutter of 16, but came to realize that listening on, say, 68 or another comm channel we got just as tired of listening to sometimes endless irrelevant conversations between others.
Now we play "you gotta hear this boat name" everyday. Also on 16 the EQ can be quite high when we hear of boaters on the sandbanks (out of danger, of course), out of fuel, simply lost, or simply clueless (eg: Coast Guard: "Vessel calling 'hello', this is......)
One of my major beefs locally with Ch 16 is the power of the USCG stations in Pt Angeles, say, blasting over everything even 60 miles away... do I really need to know about a local issue in Pt Angeles harbour when I'm in central Georgia Strait?? Every 15 minutes?
1984 Fast/Nicholson 345 "FastForward"
".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)